Description:
When exporting a PDF for a document containing multiple typefaces of the same font, LibreOffice appears to always embed the Regular typeface.

For instance, if the document contains 3 lines using, respectively, the Regular, Semibold and Bold typefaces, the exported PDF contains the Regular typeface 3 times. Similarly, if 2 different typefaces are used, the PDF contains the Regular typeface 2 times.

Observed with the Open Sans font. It doesn't seem to happen with Liberation Sans. Reproduced on both Calc and Writer.

Steps to Reproduce:
1. Install the Open Sans font, if not already available (https://fonts.google.com/specimen/Open+Sans)
2. Open the attached Test.odt file
3. Export to PDF

Actual Results:
All text lines in the PDF use the Regular typeface, which is embedded 3 times

Expected Results:
Each text line should render with the correct typeface, there should be 3 distinct typefaces embedded


Reproducible: Always


User Profile Reset: Yes



Additional Info:
Version: 7.2.4.1 / LibreOffice Community
Build ID: 27d75539669ac387bb498e35313b970b7fe9c4f9
CPU threads: 8; OS: Mac OS X 10.16; UI render: default; VCL: osx
Locale: it-IT (it_IT.UTF-8); UI: en-US
Calc: threaded